A borehole stemming apparatus

Abstract

This utility model discloses a borehole plugging device, including a remote-controlled electric flatbed cart and a mobile carrying unit for carrying conical plugging bags containing plugging material, allowing multiple conical plugging bags to move sequentially to the top of the borehole; and an automatic triggering dispensing unit that automatically triggers the dispensing operation when the conical plugging bags reach the top of the borehole. This borehole plugging device, equipped with a mobile carrying unit and an automatic triggering dispensing unit, allows for remote control of the movement and dispensing of the conical plugging bags, ultimately sealing the borehole with the conical plugging bags. This plugging device eliminates the need for manual handling and placement of the plugging bags, making it convenient, simple to operate, and highly efficient.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, and in particular to a blast hole plugging device. Background Technology

[0002] In blasting operations such as mining, geotechnical engineering, and tunneling, plugging blast holes is a crucial step in ensuring efficient use of explosive energy, controlling the range of rock fragmentation, and guaranteeing operational safety. Traditionally, explosive charges are placed in pre-drilled blast holes, and then woven bags filled with soil, sand, or rock powder are manually placed over the top of the hole to seal it. However, as blasting projects increasingly demand higher efficiency, safety, and environmental adaptability, existing technologies have revealed several shortcomings, particularly the manual bag-placing method, which is labor-intensive and inefficient, making it unsuitable for modern operations. Therefore, this application provides a blast hole plugging device to meet these needs. Utility Model Content

[0003] The purpose of this application is to provide a method for plugging mining blast holes and solving the technical problems of low work efficiency and high labor intensity caused by manual plugging operations.

[0004] To achieve the above objectives, this application provides the following technical solution: a borehole plugging device, comprising a remote-controlled electric flatbed vehicle, characterized in that: it further comprises a mobile bearing unit for carrying conical plugging bags containing plugging material, and causing multiple conical plugging bags to move sequentially to the top of the borehole;

[0005] Automatic trigger feeding unit: When the conical plugging bag moves above the cannon hole, it can be automatically triggered to perform the conical plugging bag feeding operation.

[0006] As a preferred embodiment of this invention, the mobile support unit includes an electric slide rail, multiple electric sliders, and multiple mounting plates.

[0007] The electric slide rail is mounted on the remote-controlled electric flatbed vehicle and is configured in a U-shape.

[0008] Multiple electric sliders are installed at intervals on the electric slide rail;

[0009] Multiple mounting plates are respectively installed on the electric slider. Each mounting plate is equipped with a limit rod and a screw with a forward thread section and a reverse thread section. Both the forward and reverse thread sections of the screw are threaded with ball nuts, and both sets of ball nuts are fixedly embedded in the inner cavity of the corresponding movable block. The two sets of movable blocks are respectively connected to the corresponding semi-conical clamping plates. The two sets of clamping plates form a conical receiving cavity that is adapted to the conical blocking bag.

[0010] The limiting rod slides through both sets of the movable blocks;

[0011] The mounting plate is rotatably provided with a rotating shaft, and a second bevel gear and a drive gear are respectively installed at both ends of the rotating shaft. The second bevel gear meshes with a first bevel gear installed on the screw.

[0012] The automatic trigger feeding unit includes two sets of mounting rods arranged on the left and right, and the ends of the two sets of mounting rods are respectively provided with an upper toothed plate and a lower toothed plate.

[0013] In a preferred embodiment of this invention, each of the electric sliders is slidably penetrated by a corresponding column. The lower end of the column is equipped with a universal roller that contacts the upper surface of the remote-controlled electric flatbed vehicle, and the upper end of the column is fixedly connected to the lower end of the mounting plate.

[0014] In a preferred embodiment of this invention, the inner cavities of the two sets of clamping plates are configured as smooth surfaces.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] This utility model has a reasonable structure. The blast hole plugging device is equipped with a mobile bearing unit and an automatic trigger feeding unit. It can be remotely controlled to move and feed the conical plugging bag, and finally complete the sealing and plugging of the blast hole with the conical plugging bag. This plugging device does not require manual handling and placement of the plugging bag, is easy and simple to operate, and has high work efficiency.

[0017] In this utility model, a column is also provided. Due to the provision of the column, the weight of the clamping block, the conical blocking bag and the mounting plate is transferred to the upper end of the remote-controlled electric flatbed vehicle through the column, which reduces the load when the electric slide rail drives the electric slider and also reduces the power consumption. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the mounting plate structure;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Remote-controlled electric flatbed cart; 2. Electric slide rail; 3. Electric slider; 4. Column; 5. Clamping plate; 6. Mounting rod; 7. Upper gear plate; 8. Lower gear plate; 9. Mounting plate; 10. Limiting rod; 11. Movable block; 12. Screw; 13. Ball nut; 14. First bevel gear; 15. Rotating shaft; 16. Second bevel gear; 17. Drive gear; 18. Universal roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Reference Figure 1-3 The device shown includes a remote-controlled electric flatbed cart 1 and a mobile support unit for carrying conical plugging bags containing plugging material, and for moving multiple conical plugging bags sequentially to the top of the blast hole.

[0025] Automatic trigger feeding unit: When the conical plugging bag moves above the cannon hole, it can be automatically triggered to perform the conical plugging bag feeding operation;

[0026] Automatic lifting unit: automatically lifts the conical plugging bag, which has moved to the top of the blast hole, to a certain height.

[0027] The conical plugging bag is carried by a mobile bearing unit on a remote-controlled electric flatbed cart 1 and moved to a position directly above the blast hole. At this point, the feeding unit is automatically triggered to release the bag. The conical plugging bag accelerates through free fall and eventually collides with the blast hole. The lower end of the conical plugging bag is located inside the blast hole and forms a strong compression and contact with the blast hole (the upper end of the conical plugging bag is above the blast hole, and the lower end extends into the blast hole), thus forming a good seal and helping to enhance the blasting effect. This plugging device does not require manual handling and placement of the plugging bag, is easy and simple to operate, and has high working efficiency.

[0028] As a preferred embodiment of this example, Figure 1-3 As shown, the mobile support unit includes an electric slide rail 2, multiple electric sliders 3, and multiple mounting plates 9;

[0029] The electric slide rail 2 is mounted on the remote-controlled electric flatbed trolley 1 and is configured as a loop structure;

[0030] Multiple electric sliders 3 are installed at intervals on the electric slide rail 2;

[0031] Multiple mounting plates 9 are respectively installed on the electric slider 3. Each mounting plate 9 is equipped with a limit rod 10 and a screw 12 with a forward thread section and a reverse thread section. Both the forward thread section and the reverse thread section of the screw 12 are threaded with ball nuts 13, and both sets of ball nuts 13 are fixedly embedded in the inner cavity of the corresponding movable block 11. The two sets of movable blocks 11 are respectively connected to the corresponding semi-conical clamping plates 5. The two sets of clamping plates 5 form a conical receiving cavity adapted to the conical blocking bag.

[0032] The limiting rod 10 slides through the two sets of movable blocks 11;

[0033] A rotating shaft 15 is rotatably mounted on the mounting plate 9, and a second bevel gear 16 and a drive gear 17 are respectively mounted on both ends of the rotating shaft 15. The second bevel gear 16 meshes with a first bevel gear 14 mounted on the screw 12.

[0034] The automatic trigger feeding unit includes two sets of mounting rods 6 arranged on the left and right, and the ends of the two sets of mounting rods 6 are respectively provided with an upper toothed plate 7 and a lower toothed plate 8.

[0035] Before plugging, a conical plugging bag filled with soil or sand must be placed in the conical clamping cavity formed by two sets of clamping plates 5. After the conical plugging bag is placed, the remote-controlled electric flatbed cart 1 moves along the blast hole line. When the blast hole needs to be plugged, the remote-controlled electric flatbed cart 1 stops moving. At this time, the electric track 2 is controlled to work, and the electric slider 3 drives the conical plugging bag to move. Each conical plugging bag corresponds to one blast hole. When the conical plugging bag moves longitudinally, the upper part of its drive gear 17 will mesh with the upper gear plate 7 and drive the drive gear 17 to rotate. Through the cooperation of the first bevel gear 14 and the second bevel gear 16, the screw 12 is driven to rotate. The rotation of the screw 12 will cause the two sets of ball nuts 13 to drive the two sets of clamping plates 5 to move outward. After opening to a certain angle, the clamping plates 5 stop moving (at this time, the conical plugging bag cannot be fixed in the conical clamping cavity). At this time, the conical plugging bag falls down through free fall and inserts into the blast hole, forming a plug on the blast hole.

[0036] After the first borehole is plugged, the electric track 2 continues to work when plugging the next borehole. At this time, the two clamping plates 5 after the previous material is discharged continue to move longitudinally. The drive gear 17 on the corresponding mounting plate 9 will mesh with the lower gear 8, and finally drive the two sets of clamping plates 5 to move in the opposite direction and return to their original positions, which can realize the automatic opening and closing of the two sets of clamping plates 5 (for the subsequent placement of conical plugging bags).

[0037] This borehole plugging vehicle can be remotely controlled to move and unload the conical plugging bag, ultimately sealing the borehole with the conical plugging bag. No manual handling or placement of the plugging bag is required, making operation convenient and simple.

[0038] It should be noted that the remote control terminal is connected to the remote-controlled electric flatbed trolley 1 via a controller (containing a signal transceiver) installed on the trolley. The controller is also electrically connected to the electric track 2, allowing control of the electric track 2 via the remote control terminal.

[0039] Each electric slider 3 is slidably penetrated by a corresponding column 4. The lower end of the column 4 is equipped with a universal roller 18 that contacts the upper surface of the remote-controlled electric flatbed trolley 1. The upper end of the column 4 is fixedly connected to the lower end of the mounting plate 9.

[0040] Because of the column 20, the weight of the clamping block 5, the conical blocking bag and the mounting plate 9 are transferred to the upper end of the remote-controlled electric flatbed trolley 1 through the column 20, which reduces the load when the electric slide rail 2 drives the electric slider 3 to move, and also reduces the power consumption.

[0041] In a preferred embodiment of this invention, the inner cavities of the two sets of clamping plates 5 are configured as smooth surfaces.

[0042] This can reduce the friction between the clamping plate 5 and the conical plugging bag.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A borehole plugging device, comprising a remote-controlled electric flatbed cart (1), characterized in that: It also includes a mobile support unit: for carrying conical plugging bags containing plugs, and for moving multiple conical plugging bags sequentially to the top of the blast hole; Automatic trigger feeding unit: When the conical plugging bag moves above the cannon hole, it can be automatically triggered to perform the conical plugging bag feeding operation.

2. The borehole plugging device according to claim 1, characterized in that: The mobile support unit includes an electric slide rail (2), multiple electric sliders (3), and multiple mounting plates (9). The electric slide rail (2) is installed on the remote-controlled electric flatbed (1) and is configured as a loop structure; Multiple electric sliders (3) are installed at intervals on the electric slide rail (2); Multiple mounting plates (9) are respectively installed on the electric slider (3). Each mounting plate (9) is equipped with a limit rod (10) and a screw (12) with a forward thread section and a reverse thread section. Both the forward thread section and the reverse thread section of the screw (12) are threaded with ball nuts (13), and both sets of ball nuts (13) are fixedly embedded in the inner cavity of the corresponding movable block (11). The two sets of movable blocks (11) are respectively connected to the corresponding semi-conical clamping plate (5). The two sets of clamping plates (5) form a conical receiving cavity that is adapted to the conical blocking bag. The limiting rod (10) slides through the two sets of movable blocks (11); A rotating shaft (15) is rotatably mounted on the mounting plate (9), and a second bevel gear (16) and a drive gear (17) are respectively mounted on both ends of the rotating shaft (15). The second bevel gear (16) meshes with a first bevel gear (14) mounted on the screw (12). The automatic trigger feeding unit includes two sets of mounting rods (6) arranged on the left and right, and the ends of the two sets of mounting rods (6) are respectively provided with an upper toothed plate (7) and a lower toothed plate (8).

3. The borehole plugging device according to claim 2, characterized in that: Each of the electric sliders (3) is slidably penetrated by a corresponding column (4), and the lower end of the column (4) is equipped with a universal roller (18) that contacts the upper surface of the remote-controlled electric flatbed (1). The upper end of the column (4) is fixedly connected to the lower end of the mounting plate (9).

4. A borehole plugging device according to claim 2, characterized in that: The inner cavities of the two sets of clamping plates (5) are configured as smooth surfaces.

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